7 results on '"Van Zanten, Sander Veldhuyzen"'
Search Results
2. Burden of disease from Helicobacter pylori infection in western Canadian Arctic communities
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Fagan-Garcia, Katharine, Geary, Janis, Chang, Hsiu-Ju, McAlpine, Laura, Walker, Emily, Colquhoun, Amy, van Zanten, Sander Veldhuyzen, Girgis, Safwat, Archie, Billy, Hanley, Brendan, Corriveau, Andre, Morse, John, Munday, Rachel, Goodman, Karen J., and CANHelp Working Group
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- 2019
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3. Upper gastrointestinal bleeding due to peptic ulcer disease is not associated with air pollution: a case-crossover study.
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Quan, Samuel, Hong Yang, Tanyingoh, Divine, Villeneuve, Paul J., Stieb, David M., Johnson, Markey, Hilsden, Robert, Madse, Karen, van Zanten, Sander Veldhuyzen, Novak, Kerri, Lang, Eddy, Ghosh, Subrata, Kaplan, Gilaad G., Yang, Hong, and Madsen, Karen
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CARBON monoxide analysis ,NITROGEN oxide analysis ,SULFUR compounds analysis ,AIR pollution ,CARBON monoxide ,CROSSOVER trials ,ENVIRONMENTAL monitoring ,GASTROINTESTINAL system ,NITROGEN oxides ,OZONE ,PEPTIC ulcer ,RESEARCH funding ,SULFUR compounds ,LOGISTIC regression analysis ,PARTICULATE matter ,CASE-control method ,ODDS ratio ,DISEASE complications - Abstract
Background: Recent studies have demonstrated an association between short-term elevations in air pollution and an increased risk of exacerbating gastrointestinal disease. The objective of the study was to evaluate if day-to-day increases in air pollution concentrations were positively associated with upper gastrointestinal bleeding (UGIB) secondary to peptic ulcer disease (PUD).Methods: A time-stratified case-crossover study design was used. Adults presenting to hospitals with their first UGIB secondary to PUD from 2004-2010 were identified using administrative databases from Calgary (n = 1374; discovery cohort) and Edmonton (n = 1159; replication cohort). Daily concentrations of ozone, nitrogen dioxide, sulfur dioxide, carbon monoxide, and particulate matter (PM10 and PM2.5) were estimated in these two cities. Conditional logistic regression models were employed, adjusting for temperature and humidity. Odds ratios (OR) with 95 % confidence intervals (CI) were expressed relative to an interquartile range increase in the concentration of each pollutant.Results: No statistically significant associations were observed for any of the individual pollutants based on same-day, or 1-day lag effects within the Calgary discovery cohort. When the air pollution exposures were assessed as 3-, 5-, and 7-day averages, some pollutants were inversely associated with UGIB in the discovery cohort; for example, 5-day averages of nitrogen dioxide (OR = 0.68; 95 % CI: 0.53-0.88), and particulate matter <2.5 μm (OR = 0.75; 95 % CI: 0.61-0.90). However, these findings could not be reproduced in the replication cohort.Conclusion: Our findings suggest that short-term elevations in the level of ambient air pollutants does not increase the incidence of UGIB secondary to PUD. [ABSTRACT FROM AUTHOR]- Published
- 2015
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4. Comparing the feasibility, acceptability, clinical-, and cost-effectiveness of mental health e-screening to paper-based screening on the detection of depression, anxiety, and psychosocial risk in pregnant women: a study protocol of a randomized, parallel-group, superiority trial
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Kingston, Dawn, McDonald, Sheila, Biringer, Anne, Austin, Marie-Paule, Hegadoren, Kathy, McDonald, Sarah, Giallo, Rebecca, Ohinmaa, Arto, Lasiuk, Gerri, MacQueen, Glenda, Sword, Wendy, Lane-Smith, Marie, and van Zanten, Sander Veldhuyzen
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MENTAL depression ,ANXIETY ,PREGNANT women ,PSYCHOLOGICAL stress ,MENTAL health - Abstract
Background Stress, depression, and anxiety affect 15% to 25% of pregnant women. However, substantial barriers to psychosocial assessment exist, resulting in less than 20% of prenatal care providers assessing and treating mental health problems. Moreover, pregnant women are often reluctant to disclose their mental health concerns to a healthcare provider. Identifying screening and assessment tools and procedures that are acceptable to both women and service providers, cost-effective, and clinically useful is needed. Methods/design The primary objective of this randomized, parallel-group, superiority trial is to evaluate the feasibility and acceptability of a computer tablet-based prenatal psychosocial assessment (escreening) compared to paper-based screening. Secondary objectives are to compare the two modes of screening on: (1) the level of detection of prenatal depression and anxiety symptoms and psychosocial risk; (2) the level of disclosure of symptoms; (3) the factors associated with feasibility, acceptability, and disclosure; (4) the psychometric properties of the e-version of the assessment tools; and (5) cost-effectiveness. A sample of 542 women will be recruited from large, primary care maternity clinics and a high-risk antenatal unit in an urban Canadian city. Pregnant women are eligible to participate if they: (1) receive care at one of the recruitment sites; (2) are able to speak/read English; (3) are willing to be randomized to e-screening; and (4) are willing to participate in a follow-up diagnostic interview within 1 week of recruitment. Allocation is by computer-generated randomization. Women in the intervention group will complete an online psychosocial assessment on a computer tablet, while those in the control group will complete the same assessment in paperbased form. All women will complete baseline questionnaires at the time of recruitment and will participate in a diagnostic interview within 1 week of recruitment. Research assistants conducting diagnostic interviews and physicians will be blinded. A qualitative descriptive study involving healthcare providers from the recruitment sites and women will provide data on feasibility and acceptability of the intervention. We hypothesize that mental health escreening in primary care maternity settings and high-risk antenatal units will be as or more feasible, acceptable, and capable of detecting depression, anxiety, and psychosocial risk compared to paper-based screening. Trial registration ClinicalTrials.gov Identifier: NCT01899534 [ABSTRACT FROM AUTHOR]
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- 2014
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5. The influence of demographic factors and health-related quality of life on treatment satisfaction in patients with gastroesophageal reflux disease treated with esomeprazole.
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Innocenti, Alessio Degl', Guyatt, Gordon H., Wiklund, Ingela, Heels-Ansdell, Diane, Armstrong, David, Fallone, Carlo A., Tanser, Lisa, Van Zanten, Sander Veldhuyzen, El-Dika, Samer, Chiba, Naoki, Barkun, Alan N., Austin, Peggy, and Schünemann, Holger J.
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QUALITY of life ,DEMOGRAPHY ,GASTROESOPHAGEAL reflux ,ESOMEPRAZOLE ,ESOPHAGUS diseases ,PATIENTS ,THERAPEUTICS - Abstract
Background: The correlation between treatment satisfaction and demographic characteristics, symptoms, or healthrelated quality of life (HRQL) in patients with gastroesophageal reflux disease (GERD) is unknown. The objective of this study was to assess correlates of treatment satisfaction in patients with GERD receiving a proton pump inhibitor, esomeprazole. Methods: Adult GERD patients (n = 217) completed demography, symptom, HRQL, and treatment satisfaction questionnaires at baseline and/or after treatment with esomeprazole 40 mg once daily for 4 weeks. We used multiple linear regressions with treatment satisfaction as the dependent variable and demographic characteristics, baseline symptoms, baseline HRQL, and change scores in HRQL as independent variables. Results: Among the demographic variables only Caucasian ethnicity was positively associated with treatment satisfaction. Greater vitality assessed by the Quality of Life in Reflux and Dyspepsia (QOLRAD) and worse heartburn assessed by a four-symptom scale at baseline, were associated with greater treatment satisfaction. The greater the improvement on the QOLRAD vitality (change score), the more likely the patient is to be satisfied with the treatment. Conclusions: Ethnicity, baseline vitality, baseline heartburn severity, and change in QOLRAD vitality correlate with treatment satisfaction in patients with GERD. [ABSTRACT FROM AUTHOR]
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- 2005
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6. Study protocol for a randomized, controlled, superiority trial comparing the clinical and cost- effectiveness of integrated online mental health assessment-referral-care in pregnancy to usual prenatal care on prenatal and postnatal mental health and infant health and development: the Integrated Maternal Psychosocial Assessment to Care Trial (IMPACT).
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Kingston, Dawn, Austin, Marie-Paule, Hegadoren, Kathy, McDonald, Sheila, Lasiuk, Gerri, McDonald, Sarah, Heaman, Maureen, Biringer, Anne, Sword, Wendy, Giallo, Rebecca, Patel, Tejal, Lane-Smith, Marie, and van Zanten, Sander Veldhuyzen
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ANXIETY diagnosis ,ANXIETY treatment ,MENTAL health ,MENTAL health services ,TREATMENT of pregnancy complications ,TREATMENT of psychological stress ,THERAPEUTICS ,ANXIETY ,MEDICAL referrals ,MATERNAL health services ,POSTPARTUM depression diagnosis ,CHILD welfare ,COMPUTERS in medicine ,PREGNANCY complications ,APGAR score ,CHILD development ,COGNITIVE therapy ,COST effectiveness ,EXPERIMENTAL design ,INTEGRATED health care delivery ,INTERNET ,LONGITUDINAL method ,MEDICAL care costs ,RESEARCH protocols ,POSTPARTUM depression ,TIME ,PSYCHOLOGICAL stress ,MOTHERS ,TREATMENT effectiveness ,PSYCHOLOGICAL factors ,ECONOMICS ,DIAGNOSIS ,PSYCHOLOGY ,SOCIAL history - Abstract
Background: Stress, depression, and anxiety affect 15 to 25% of pregnant women. However, fewer than 20% of prenatal care providers assess and treat mental health problems and fewer than 20% of pregnant women seek mental healthcare. For those who seek treatment, the lack of health system integration and existing barriers frequently prevent treatment access. Without treatment, poor prenatal mental health can persist for years and impact future maternal, child, and family well-being.Methods/design: The purpose of this randomized controlled trial is to evaluate the effectiveness of an integrated process of online psychosocial assessment, referral, and cognitive behavior therapy (CBT) for pregnant women compared to usual prenatal care (no formal screening or specialized care). The primary outcome is self-reported prenatal depression, anxiety, and stress symptoms at 6 to 8 weeks postrandomization. Secondary outcomes are postpartum depression, anxiety, and stress symptoms; self-efficacy; mastery; self-esteem; sleep; relationship quality; coping; resilience; Apgar score; gestational age; birth weight; maternal-infant attachment; infant behavior and development; parenting stress/competence; and intervention cost-effectiveness, efficiency, feasibility, and acceptability. Pregnant women are eligible if they: 1) are <28 weeks gestation; 2) speak/read English; 3) are willing to complete email questionnaires; 4) have no, low, or moderate psychosocial risk on screening at recruitment; and 5) are eligible for CBT. A sample of 816 women will be recruited from large, urban primary care clinics and allocation is by computer-generated randomization. Women in the intervention group will complete an online psychosocial assessment, and those with mild or moderate depression, anxiety, or stress symptoms then complete six interactive cognitive behavior therapy modules. All women will complete email questionnaires at 6 to 8 weeks postrandomization and at 3, 6, and 12 months postpartum. Clinic-based providers and researchers conducting chart abstraction and analysis are blinded. Qualitative interviews with 8 to 10 healthcare providers and 15 to 30 intervention group women will provide data on feasibility and acceptability of the intervention. Results of this trial will determine the feasibility and effectiveness of an integrated approach to prenatal mental healthcare and the use of highly accessible computer-based psychosocial assessment and CBT on maternal, infant, and family-based outcomes.Trial Registration: ClinicalTrials.gov Identifier: NCT01901796. [ABSTRACT FROM AUTHOR]- Published
- 2014
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7. The influence of demographic factors and health-related quality of life on treatment satisfaction in patients with gastroesophageal reflux disease treated with esomeprazole.
- Author
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Degl' Innocenti A, Guyatt GH, Wiklund I, Heels-Ansdell D, Armstrong D, Fallone CA, Tanser L, van Zanten SV, El-Dika S, Chiba N, Barkun AN, Austin P, and Schünemann HJ
- Subjects
- Adult, Aged, Aged, 80 and over, Canada, Demography, Female, Gastroesophageal Reflux physiopathology, Gastroesophageal Reflux psychology, Heartburn physiopathology, Heartburn psychology, Humans, Linear Models, Male, Middle Aged, Surveys and Questionnaires, Treatment Outcome, Enzyme Inhibitors therapeutic use, Esomeprazole therapeutic use, Gastroesophageal Reflux drug therapy, Patient Satisfaction statistics & numerical data, Quality of Life
- Abstract
Background: The correlation between treatment satisfaction and demographic characteristics, symptoms, or health-related quality of life (HRQL) in patients with gastroesophageal reflux disease (GERD) is unknown. The objective of this study was to assess correlates of treatment satisfaction in patients with GERD receiving a proton pump inhibitor, esomeprazole., Methods: Adult GERD patients (n = 217) completed demography, symptom, HRQL, and treatment satisfaction questionnaires at baseline and/or after treatment with esomeprazole 40 mg once daily for 4 weeks. We used multiple linear regressions with treatment satisfaction as the dependent variable and demographic characteristics, baseline symptoms, baseline HRQL, and change scores in HRQL as independent variables., Results: Among the demographic variables only Caucasian ethnicity was positively associated with treatment satisfaction. Greater vitality assessed by the Quality of Life in Reflux and Dyspepsia (QOLRAD) and worse heartburn assessed by a four-symptom scale at baseline, were associated with greater treatment satisfaction. The greater the improvement on the QOLRAD vitality (change score), the more likely the patient is to be satisfied with the treatment., Conclusions: Ethnicity, baseline vitality, baseline heartburn severity, and change in QOLRAD vitality correlate with treatment satisfaction in patients with GERD.
- Published
- 2005
- Full Text
- View/download PDF
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